TY  - BOOK
AU  - Chamberlain Charles Joseph
TI  - Gymnosperms: structure and evolution
U1  - I6:2, K6   TI 
PY  - 1966///
CY  - New York    
PB  -  Dover Publicaions       
KW  - Gymnosperms
N1  - Bibliography 447-480p
ER  -